A Specific Inventory Example
* 进阶：使用Sedgewick步长序列（更高效）
。关于这个话题，夫子提供了深入分析
It is a live vaccine which means it contains a weakened version of the chickenpox virus. As such, it is not recommended for those with a compromised immune system because of an illness like HIV or as a result of treatment such as chemotherapy.
// (it isn't always in every impl)